既有铁路桥涵施工安全防护技术

The Safeguarding Technology for Existing Bridges and Culverts in Duplicate Railway Construction

针对在既有铁路线旁增建二线施工中 ,如何在桥涵地基开挖过程中 ,保护既有线路台背路堤 ,提出了加固防护措施 ,并对加固方案进行了验算 ,该措施具有一定的工程实际意义和借鉴参考作用。

the paper gives a scheme about how to safeguard the existing enbankment near the digying up bed of new bridges and culverts,which has been concerned during the construction of duplicate railway parallel to a railway.The scheme has been passed by checking computations.Some suggestions are useful for engineering practice.